title: From family to peer: transitions of influence among drug-using youth.
mesh_terms: D000293:Adolescent; D000428:Alcohol Drinking; D005190:Family; D006801:Humans; D007398:Interpersonal Relations; D002189:Marijuana Abuse / Q000523:psychology; D008960:Models, Psychological; D010287:Parent-Child Relations; D010379:Peer Group; D000297:Psychology, Adolescent; D019966:Substance-Related Disorders / Q000523:psychology*